Zebra Mobile printer unexpected characters

Question

I'm using Zebra QL420 plus printer to print some cyrillic characters. 
My computer is using Turkish language. I have downloaded cyrillic font to print in cyrillic. The problem is Latin characters are converted to cyrillic but cyrillic characters are printed wrong!

Here is the code to print in cyrillic:

T CYRILLIC.CPF 0 25 20 TEST ?????????
and c# code to send data:

TcpClient client = new TcpClient("192.168.xx.xxx", port);
byte[] data = System.Text.Encoding.UTF8.GetBytes(message);
NetworkStream stream = client.GetStream();
stream.Write(data, 0, data.Length);
stream.Close();
client.Close();

Any help is appreciated

Thanks in advance